The Direct Reduction of Iron
2014-1-1 · Iron is the fourth most abundant element found on the earth; the earth''s crust contains approximately 5% iron [] on naturally occurs in the + 2 and + 3 oxidation states and is not found in metallic form, except in meteorites.The myriad of iron minerals and ores have recently been reviewed [].Some of the common minerals in commercial iron ores are magnetite (Fe 3 O 4), hematite (Fe 2 O 3 ...